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2.2.7 Aneurysms

Thoracic aortic aneurysms are largely asymptomatic until a sudden and catastrophic event occurs, such as rupture or dissection. Such events are rapidly fatal in a large proportion of patients. Risk varies with the type and size of aneurysm. The standards is set less stringently for atherosclerotic aneurysms or aneurysms associated with bicuspid aortic valve, compared to aneurysm associated with genetic aortopathy, including Marfan Loeys-Dietz, Turner and Ehlers-Danlos syndromes, and familial aortopathy.2